A good idea, combined with the right technology, can change the world. Facebook, Wikipedia and the wheel have all shown this to be true. 25 years ago, the BBC dreamt up a similarly inspired scheme. However, in the case of the Domesday Project, it was the tech that doomed it.

The premise was straightforward enough - create a 20th century version of William the Conqueror's 900-year-old page-turner, the Domesday Book. Instead of land rights and livestock, it would chronicle life in 1980s Britain, based on photographs and written accounts submitted by ordinary people.

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